Insulated bail-joint



C. A. DISBROW.

INSULATEDRAIL JOINT. APPLICAHON FILED NOV-2, x920.

Patented Feb. 22,1921

C, A. DiSBROW.

i'NSULATED RML .HNNT.

APPLiCATlOH men uomz, 1920.

1,3693%. Patented Feb. 22,1921.

2 SHEETSSHEET 2- part of the insulation.

UNITED STAT CLARKSON A. nIsBRow. or NEW ROCHELLE, NEW YORK.

msnLA'rEn RAIL-JOINT.

Specification of Iiettcrs Patent. Patented Feb 22 1921 Application filed November 2, .1820. Serial No. 421,294.

To alZZ whomz't'mag coowern: I

Be it known that I, CL'AnksoNA. DIS- nnow, a citizen of theUnited St-ates, residing at New Rochelle, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Insulated Rail-Joints, of which the following is a specification.

This invention relates to insulation for rail joints and more particularly:- to' a newforinof insulating end post employed between the meeting ends of the rails and the joint.

In an insulated railjoint the top edge of the endpost between the rail ends is exposed to severeshock and wear, which-results in'a relatively rapid'destruction of that Furthermore, the upper part of an insulating end post isentirely exposed to weather conditions which more or less afiect its durability. Accord ingly, the present invention has in view a new form of'end post of the separable type, that is,- of a construction wherein the head section or head piece thereof is renewable or replaceable. Itis therefore one object of the invention to provide an insulating end post of such construction that-the part thereof subjected to greatest. wear and weather exposure,- may be replaced or renewed without disturbing the remainingserviceable and unworn part. construction of end post'which effects substantially' an economy in maintenance.

With these and other objects in view, it will readilyappear to those familiar with this subject, that the invention consists in the novel construction of insulating end posts hereinaftermore fully described and illustrated in the claims.'

Although susceptible'of modifications in various structural forms, certain preferred and practical constructions are shown in the accompanying drawings in which Figure l is a face elevation of an insulating end post constructed in accordance with the present invention and showing an interlocking joint between the renewable head section and the body part of the post.

Figs. 2, 3 and 4 also are face elevations illustrating the range of modification that may be resorted to in joining the renewable head section to the body of the post.

Fig. 5 illustrates a form of the invention Furthermore, to provide a:

shaped for interlocking with other fiber parts of an insulated joint.

Fig. 6 is a cross sectional view of an insulated rail joint showingthe general type of end post, of Fig. 5, arranged at interlocking relation to the head and base fiber parts of the joint.

Like references designate correspondin parts in the several figures of the drawing;

The primary feature of the invention is that of an insulating'end post having a renewablehead section, and in the form shown in Fig. 1 of the drawings, the said renewable head section is designated bv the reference letter A, and the lower part of the base is designated generally by the reference letter B. Of course it is well known that in form an insulating endpost corre sponds to the cross sectional form of the rail ends between whichit is inserted, and the said end post therefore has a body which includes a base and a weband a head, and

since it is the main purpose of the present invention to provide a separable or detachable head member, it is necessarv to so alter the usual construction of an erid post that the said head member, designated A ,'may be readily replaced when unduly worn or damaged, by a similar new head section.

In carrying forward the primary features referred to, the head memberA may be associated with the remainder of the body of the end post in various ways, for instance, as shown in Fig. l of the drawings. a dove-tail jointNo. 1, may be formed be tween the head member A and the body B of the base so that there will be a direct interfitting and interlocking of the said two members of the post, thus obviating any tendency of the head member to become displaced. Substantially the same structural idea is followed in the constructions in the modifications shown in Fig. 2 in which the upright or web member of the end post body may be provided with a T- head 2, registering and interlocking with a correspondingly shaped socket 3, in the head member A.

Other simplied forms of construction which may be resorted to are suggested in Figs. 3 and d of the drawings, Fig. 3 illustrating the renewable head section A formed in its lower side with a substantially V-shaped notch l receiving a correspondingly pointed tenon 5 at the upper end of the web of the proposed body, and Fig. 4 showing the same form of construction, in the squared formation.

Another phase of the invention is represented by the modifications of Figs. 5 and 6 of the drawings. According to these modifications, the end post may be constructed of upper and lower parts A and B which are not directly connected together but which are preferably designed to interlock .with the head and base fiber parts of an insulated rail joint. For i11- stance, as shown in said Figs. 5 and 6 of the drawings, the renewable head section A, may be provided at its lower side with a flanged foot piece 6, whose outwardly projecting flanges are adapted to engage in slots 7, formed in the head fiber parts 8 of the joint and also preferably engaging beneath the inner head projections 9 of the joint bars 10. Similarly, the lower part B of the end post shown in Figs. 5 and 6. of the drawings, may be provided atits outer edge with a flanged neck piece 11, whose outwardly projecting flanges engage in the slots 12 of the base fiber parts 13 of the rail joint, and also preferably overhang the lower inner corner projections .l l of the joint bars 10; -Obviously in the form of construction described and as shown in Figs. 5 and 6 of the drawings, there is a secure interlocking of all of the fiber parts of the joint while at the same time permitting the more exposed head section to be renewed or replaced by a new piece whenever that may become necessary or desired.

Having in mind the renewable or replaceable characteristic of the head section of the end post, it will be understood that the same may be made of more durable insulating material than the remainder of the post, thereby increasing its life.

It will also now be noted that the new end post, particularly in the formations of Figs. 5 and 6, will effect a great saving in material since the cost of an end post is estimated on the area which is obtained by multiplying the greatest width by the greatest height.

From the foregoing, it is thought that the construction and advantages of the herein described insulating end post will now be readily apparent without further description, and it is understood that various changes in the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

I claim:

1. An insulating end post having a renewable head section.

2. An insulating end post having a renewable head section of more durable material than the remainder of the post.

3. An insulating end post having a removable head section provided with retaining means for holding it in place. 7 4:. In an insulated rail joint, in combination with the fiber parts for the joint bars, of an insulating end post having a detachable head section interlocked with said fiber parts.

5. In an insulated rail joint, in combination with the fiber parts for the joint bars, a separable insulating end post having its separate members interlocked with the said fiber parts of the joint.

6. In an insulated rail joint, in combination with the fiber parts for the joint bars, a separable insulating end post having its separate members independently interlocked with the said fiber parts of the joint. I

7 In an insulated joint, in combination with the fiber parts for the joint bars, a separable insulating end post having a detachable head section provided with a menn ber interlocking with the head fiber parts of the joint, and a base section having a member interlocking with the base fiber parts of the joint. 7 g

8. In an insulated rail joint, in combination with the joint bars, a separable insulating end post having a detachable head section interlocking with the joint bars, and a separate base section also interlocking with the jointfbars.

9. In an insulated rail joint, ineombination with the joint bars and the fiber parts therefor, a separable insulating end post having a head section interlockin r with the joint bars and with the head 'ber parts therefor, and a base section interlocking with the joint bars and the base fiber parts therefor.

In testimony whereof I hereunto affix my signature in the resence of two witnesses.

CLARIISON A. DISBROW.

Witnesses:

E. K. KERSHNER, EMORY L. GRAFF. 

